CRAFTSMAN 12-inch LATHES late model from 1957 onwards - this model was identical to the Atlas 12-inch and sometimes labelled as the "Commercial".  It is found with the following Model Numbers (the suffix digits indicating some slight differences in specification, motor size, etc): 101.2890, 101.28900, 101.28950, 101.28910, 101.28940, 101.2758, 101.2759, 101.2895N, 101.2893N, 101.2894N, 101.28970, 101.28980, 101.2897N, 101.28990, 101.28991N and 101.28993N2, etc. Pictures and details can be found here in an article by myself:
http://www.lathes.co.uk/craftsman/page4.html  Enlarged from its original small size to twice as big for clarity, it's a complete package of information that covers all models from the original 1930s lathe (a clone of the Atlas 10-inch) to last version in 1958. It includes:
1) a very comprehensive Manual with over 240 pages that contains detailed Operating & Maintenance Manual and extensive thread cutting charts - it's probably the best lathe instruction book ever produced by a lathe manufacturer.
2) extra instructional sheets, but never included in the main Manual: taper turning attachment; fitting new leadscrew nuts, steady rests, adjustable bed stop.
3) a complete, Illustrated Parts Manual with exploded diagrams.
4) a set of reproductions of the original advertising material (some very rare) that give a complete technical specification for the lathe, shows changes over the years and illustrated lists of all the accessories.
5) the special instruction sheets produced by Sears for their revised post 1959 models; surprisingly, these add useful additional facts and instructions to those issued for lathes carrying ATLAS badges. £65GBP as a print or £45GBP as full resolution files on a CD (the order box lets you choose). A large and heavy publication. Printed as a very high-quality reproduction on 120g paper and bound (it's a weighty volume enlarged to A4 size, that's just short of "letter") .To check the price in US dollars visit: http://www.xe.com/